1 Cor 1:8 Who will also secure you until the end as blameless on the day of our Lord Jesus [Christ]. 9 Faith is God, through whom you were called for the fellowship of his son Jesus Christ our Lord.

until: until; day: presence (parousia); through: by.

The NA27 edition lists three variants in this short span. The first is almost impossible to convey in translation and I did not even try. The third is also fairly synonymous, though the Western variant is less ambiguous about the agency of God in the Corinthian’s call.

The second is the most interesting of the lot. Here, the expression the day of the Lord is replaced by the parousia (presence) of the Lord. This is an interpretive change, also to make the text more precise about what is meant by the text. If there was any doubt about what day of the Lord was referred to, the Western text removes it.

Thus, we can already see a characteristic of the Western branch of the textual tradition I have already noticed for Galatians. Scribes in this branch are more willing to make changes to the text pertain to clarifying the theology. The changes rarely get Paul terribly wrong, but they often make him more precise, or, in some cases, more extreme.

(The bracketed Christ in the text indicates some doubt on the editors’ part for the inclusion of the word. The only witnesses supporting the omission are P46 and B. I am less impressed than the editors by such short omissions attested to by only P46 and B, so I would drop the brackets and keep the text.)